Replace boolean indications of strict mode by an enum value.

src/hydrogen.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 751 matching lines @@
   }
   HBasicBlock* function_return() const {
     return function_state()->function_return();
   }
   TestContext* inlined_test_context() const {
     return function_state()->test_context();
   }
   void ClearInlinedTestContext() {
     function_state()->ClearInlinedTestContext();
   }
-  bool function_strict_mode() {
-    return function_state()->compilation_info()->is_strict_mode();
+  StrictModeFlag function_strict_mode_flag() {
+    return function_state()->compilation_info()->strict_mode_flag();
   }
 
   // Generators for inline runtime functions.
 #define INLINE_FUNCTION_GENERATOR_DECLARATION(Name, argc, ressize)      \
   void Generate##Name(CallRuntime* call);
 
   INLINE_FUNCTION_LIST(INLINE_FUNCTION_GENERATOR_DECLARATION)
   INLINE_RUNTIME_FUNCTION_LIST(INLINE_FUNCTION_GENERATOR_DECLARATION)
 #undef INLINE_FUNCTION_GENERATOR_DECLARATION
 
@@ skipping 456 matching lines @@
   const char* filename_;
   HeapStringAllocator string_allocator_;
   StringStream trace_;
   int indent_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_